question_answer

The angles of a triangle are\[\left( x+5 \right){}^\circ ,\left( 2x-3 \right){}^\circ \text{ }and\text{ }\left( 3x+4 \right){}^\circ \]. The value of x is

A)  30                   

B)  31

C)  29      

D)         28

Correct Answer: C

Solution :

  XP=XR \[\therefore \]\[\angle XPR=\angle XRP\] If \[\angle PSX=\angle RQX.\]                        then. PS=RQ